Storage calculators

Model GB-month stored, request fees, replication/copies, and egress separately to avoid surprises.

All calculators Guide: storage costs Guide: backups & snapshots Methodology

What to include

  • Average stored size (GB-month), not just end-of-month size.
  • Requests (GET/PUT/LIST) for small-object and high-request workloads.
  • Replication/copy volume (changed GB/month), not total stored GB.
  • Egress for reads to internet/CDN/or other regions.

Validation checklist

  • Validate storage class mix and lifecycle transitions (hot → cold → archive).
  • Validate whether pricing uses GB vs GiB and per-1k vs per-10k request units.
  • Separate CDN bandwidth from origin egress to avoid double-counting.

How to get your inputs

  • GB-month: storage metrics for average used size (not just month-end).
  • Requests: storage access metrics or billing usage types (GET/PUT/LIST).
  • Replication: changed GB/month from replication logs or transfer metrics.
  • Egress: bytes out from CDN/origin metrics or billing exports.
10 storage tools
AWS ECR Cost Calculator
Estimate ECR-style cost from stored GB-month plus data transfer assumptions.
AWS EBS Snapshot Cost Calculator
Estimate snapshot storage cost from volume size, churn, and retention.
AWS S3 Glacier / Deep Archive Cost Calculator
Estimate archive storage cost from stored GB-month plus retrieval GB and request assumptions.
Storage Pricing Calculator
Estimate object storage pricing from GB-month, requests, and egress.
S3 Cost Calculator
Estimate S3-like storage costs: storage, requests, egress, replication.
Object Storage Cost Calculator
Estimate storage and request costs (GET/PUT) for S3-like object storage.
S3 Request Cost Calculator
Estimate S3-like request costs (GET/PUT) from monthly request volume.
S3 Replication Cost Calculator
Estimate replication fee from replicated GB/month and $/GB assumptions.
Storage Replication Cost Calculator
Estimate replication transfer/storage cost from replicated GB and $/GB pricing.
Database Storage Growth Cost Calculator
Estimate storage growth over time and the average monthly cost.

Result interpretation

  • If storage dominates, verify average GB-month and growth assumptions before changing tiers.
  • If request fees dominate, validate object counts and request mix (GET vs PUT vs LIST).
  • If replication dominates, confirm changed GB/month rather than total stored GB.
  • Use a peak scenario if retention policies or backups spike during incidents.

Scenario planning

  • Baseline: average GB-month and typical request volume.
  • Peak: higher churn and backup volume during incident months.
  • Growth: add a monthly growth curve for stored data.
  • Lifecycle: compare hot vs cold tier mixes in separate scenarios.

Validate after changes

  • Confirm GB-month trends in storage metrics after lifecycle changes.
  • Validate request counts and mix (GET/PUT/LIST) in billing exports.
  • Check replication and egress usage types after routing updates.
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